Women given wrong breast cancer resultsSYDNEY, Jan. 28 (UPI) -- Two Australian women have found they have breast cancer, after a computer error had wrongly cleared them of the disease, healthcare industry officials said.

Cleanliness of girls may up asthma riskCORVALLIS, Ore., Jan. 28 (UPI) -- Because girls are generally kept from getting dirty compared to boys, girls may have higher rates of allergies and asthma, U.S. researchers suggest.

Interim guidance for drugs to prevent HIVATLANTA, Jan. 27 (UPI) -- The Centers for Disease Control and Prevention in Atlanta has issued interim guidance in the use of Pre-Exposure Prophylaxis as an HIV prevention strategy.

Lura Ryan's condition 'very grave'KANKAKEE, Ill., Jan. 28 (UPI) -- The terminally ill wife of jailed former Illinois Gov. George Ryan is home from the hospital but may have only weeks to live, an attorney said.

Unrealistic optimism may taint trialsNEW YORK, Jan. 28 (UPI) -- A U.S. researcher cautions unrealistic optimism may be common in early cancer trials and may distort the views of participants.

Caffeine 'jazzes' engineered cellsDALLAS, Jan. 27 (UPI) -- U.S. researchers say caffeine could help step up production of cells engineered to produce viruses in gene therapy.

Teens should get meningococcal boosterATLANTA, Jan. 27 (UPI) -- Federal health officials say U.S. teens ages 16-18 should make sure they get either a booster dose or their first dose of meningococcal conjugate vaccine.

U.N. warns of Asian foot-and-mouth threatUNITED NATIONS, Jan. 27 (UPI) -- A U.N. agency says it is warning veterinary and border authorities in Asia of a major outbreak of foot-and-mouth disease in the Republic of Korea.

World-wide debate over smallpox virusATLANTA, Jan. 27 (UPI) -- Stocks of smallpox virus held at two facilities, one in Russia and one in Atlanta, are at the center of international debate about their future, experts say.

Waitress fired for bald cancer supportWINNIPEG, Manitoba, Jan. 27 (UPI) -- A waitress fired because she shaved her head to show support for her cancer-stricken uncle in Winnipeg, Manitoba, is considering a human rights complaint.

Repeal of gay blood-donor ban soughtOTTAWA, Jan. 27 (UPI) -- The Canadian Blood Service agency wants the federal health agency to ease restrictions on gay and bisexual men donating blood, a spokeswoman said.

Diabetics, spouses may feel stressWEST LAFAYETTE, Ind., Jan. 26 (UPI) -- Older patients with diabetes and their spouses may experience stress, frustration and sadness due to the demands of the disease, U.S. researchers say.

Exercise improves street-crossing speedCHICAGO, Jan. 26 (UPI) -- Exercise can help those with knee osteoarthritis walk fast enough to cross the street before the signal changes, U.S. researchers suggest.

Hair stylists question chemical in relaxerCHICAGO, Jan. 26 (UPI) -- A hair relaxer found in Brazilian Blowout and some other brands may not only be smelly but presents a health risk due to formaldehyde, Oregon officials say.

Hot flashes linked to fewer breast cancersSEATTLE, Jan. 26 (UPI) -- Women who suffer through hot flashes and other menopausal symptoms may have much lower risk of the most common forms of breast cancer, U.S. researchers say.

Rhabdomyolysis cited in Iowa hospitalizationsIOWA CITY, Iowa, Jan. 26 (UPI) -- University of Iowa officials confirmed Wednesday 13 Hawkeyes football players were hospitalized this week and that a muscle disorder is suspected.